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ORM.java
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ORM.java
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package org.rapidoid.orm;
import org.rapidoid.RapidoidThing;
import org.rapidoid.annotation.Authors;
import org.rapidoid.annotation.Since;
import org.rapidoid.beany.Beany;
import org.rapidoid.beany.Prop;
import org.rapidoid.cls.Cls;
import org.rapidoid.cls.TypeKind;
import org.rapidoid.jdbc.JDBC;
import org.rapidoid.jdbc.JdbcClient;
import org.rapidoid.sql.SQL;
import org.rapidoid.u.U;
import java.util.Map;
/*
* #%L
* rapidoid-sql
* %%
* Copyright (C) 2014 - 2016 Nikolche Mihajlovski and contributors
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
@Authors("Nikolche Mihajlovski")
@Since("5.3.0")
public class ORM extends RapidoidThing {
private static JdbcClient jdbc() {
return JDBC.defaultApi();
}
public static void bootstrap(Class<?>... entityClasses) {
for (Class<?> entityClass : entityClasses) {
defineTable(entityClass);
}
}
private static void defineTable(Class<?> entityClass) {
String table = SQL.tableOf(entityClass);
Map<String, String> columns = U.map();
for (Prop prop : Beany.propertiesOf(entityClass)) {
String columnType = columnTypeOf(prop.getRawType());
if (columnType != null) {
columns.put(prop.getName(), columnType);
}
}
SQL.createTable(table, columns);
}
private static String columnTypeOf(Class<?> rawType) {
TypeKind kind = Cls.kindOf(rawType);
if (rawType.equals(Ref.class)) {
return "int";
}
if (rawType.equals(Refs.class)) {
return null;
}
switch (kind) {
case STRING:
return "varchar(256)";
case INT:
case INT_OBJ:
return "int";
case LONG:
case LONG_OBJ:
return "int";
default:
throw U.rte("Unsupported column type: " + rawType);
}
}
}